植物源杀虫剂对黄曲条跳甲的控制效果

Control effect of compound flea beetle powder on Phyllotreta striolata (F.)

利用茶枯粉对昆虫的忌避作用,研制出复方跳甲粉,并进行了药效试验。网室小区试验发现,复方跳甲粉不仅对黄曲条跳甲具有较好的防控效果,且有一定的肥效,具体表现为出苗数较多、取食孔较少、菜产量提高;与单剂处理和空白对照相比,差异均达显著水平。田间试验发现,复方跳甲粉的田间控制效果较好,在网笼罩和露地处理中,成虫数量均相对最少,叶片受害指数分别为0.2950和0.4221,低于对照组的0.3505和0.6745。

Based on the deterrent effect of Camellia sinensis powder on insect, a compound flea beetle powder was developed and pesticide experiment was carried out in this study. The results of plot test covered with veil mats showed that compound flea beetle powder not only had a good control effect on Phyllotreta striolata （F.）, but also had a fertilizer efficiency, embodied in the improvement of seedling emergence, reduction of feeding holes and advancement of vegetable output, all of these were significant difference at 0.05 compared with single camellia sinensis powder and blank control. The results of field test treatments （veil mats covered and no-covered ground） showed that the compound flea beetle powder had excellent control effect on insect population development, the number of adults insect was relative minimum, the leaf damaged index were 0.2950 and 0.4221 respectively, less than the blank control （0.3505 and 0.6745）.